Musculoskeletal disorders (MSDs) have a multifactorial etiology which is not only associated with physical risk factors, but also psychosocial risk factors. The present study evaluated the effects of psychosocial risk factors on the development of musculoskeletal disorders among the manual material handling workers at both organized and unorganized sectors. The Nordic Musculoskeletal Disorders Questionnaire and the Copenhagen Psychosocial Questionnaire (COPSOQ) were used to find out the relationship between the development of MSDs and psychosocial cues. Statistical analysis was done to determine the predominant psychosocial cues responsible in affecting the work performance of manual material handling workers. It is observed that the unorganized group of workers suffered more in musculoskeletal disorders than the organized group of workers and underwent more psychosocial stress than their organized counterparts. Significant differences between organized and unorganized workers have been found in different psychosocial factors like monthly income, quantitative demands, predictability, role conflict, insecurity at work, job satisfaction, behavioural stress and prevalence of MSDs. From the results of the study, it may be concluded that the psychosocial cues like quantitative demands, emotional demands, predictability, role conflict, insecurity at work, job satisfaction, general health and behavioural stress have got a leading role for the development of MSDs in both the organized and unorganized sectors.
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